September
September · May · June
China · 1991–2020
September leads for comfortable weather in Wenquansi: typically 24°C by day, 12.3°C at night, with 60 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
June · July · September
May · September · April
The weakest month is January, scoring 5 against September’s 88 — days reach only -4.5°C, 28° below the 24°C the score treats as ideal, and nights drop to -16.4°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -4.5°C | -16.4°C | 8 mm | 2 | 9 h 30 | 5 | Good coverage |
| February | 0.1°C | -11.7°C | 12 mm | 2.6 | 10 h 33 | 5 | Good coverage |
| March | 7.2°C | -3.7°C | 18 mm | 3.4 | 11 h 48 | 10 | Good coverage |
| April | 16.4°C | 4.3°C | 49 mm | 6.4 | 13 h 16 | 51 | Strong coverage |
| May | 23.1°C | 10.8°C | 72 mm | 8.9 | 14 h 29 | 79 | Strong coverage |
| June | 27.1°C | 16.3°C | 123 mm | 11.3 | 15 h 09 | 68 | Strong coverage |
| July | 29.2°C | 20.3°C | 211 mm | 12.2 | 14 h 53 | 41 | Strong coverage |
| August | 28.4°C | 19°C | 228 mm | 12.5 | 13 h 50 | 43 | Strong coverage |
| September | 24°C | 12.3°C | 60 mm | 6.5 | 12 h 25 | 88 | Good coverage |
| October | 16.2°C | 4.1°C | 58 mm | 6.3 | 11 h 01 | 49 | Strong coverage |
| November | 6°C | -4.4°C | 35 mm | 5.2 | 9 h 48 | 5 | Strong coverage |
| December | -2.2°C | -13.1°C | 13 mm | 2.9 | 9 h 12 | 5 | Good coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.8°C24 Jan 2021 | -34.5°C15 Jan 2001 | 23 mm12 Jan 1964 | 35 mm1964 · driest 0 mm in 2008 | 72 |
| February | 14.8°C19 Feb 1998 | -29.4°C2 Feb 1979 | 37 mm10 Feb 1962 | 47 mm1962 · driest 0 mm in 1982 | 72 |
| March | 23.8°C31 Mar 2023 | -23.1°C13 Mar 1957 | 25 mm23 Mar 1990 | 43 mm1981 · driest 0 mm in 2017 | 72 |
| April | 30.4°C30 Apr 2015 | -13.2°C3 Apr 1962 | 50 mm29 Apr 1967 | 108 mm2009 · driest 0 mm in 2014 | 72 |
| May | 34.6°C28 May 1979 | -0.2°C2 May 1988 | 69 mm3 May 2016 | 180 mm2016 · driest 18 mm in 1999 | 72 |
| June | 38.5°C15 Jun 2017 | 4.3°C2 Jun 1957 | 99 mm20 Jun 2017 | 243 mm2021 · driest 35 mm in 2007 | 72 |
| July | 37.5°C31 Jul 2018 | 12.4°C1 Jul 1987 | 169 mm20 Jul 1981 | 501 mm1995 · driest 40 mm in 1972 | 72 |
| August | 39.4°C2 Aug 2018 | 7.0°C29 Aug 2009 | 229 mm4 Aug 1960 | 542 mm1960 · driest 19 mm in 1979 | 71 |
| September | 33.5°C1 Sep 2002 | -0.1°C28 Sep 1981 | 88 mm16 Sep 2022 | 156 mm2022 · driest 3 mm in 2002 | 71 |
| October | 29.4°C9 Oct 1982 | -9.4°C24 Oct 1982 | 174 mm3 Oct 2021 | 257 mm2021 · driest 8 mm in 1985 | 71 |
| November | 21.3°C1 Nov 2024 | -24.2°C25 Nov 1959 | 33 mm3 Nov 1976 | 80 mm2022 · driest 4 mm in 1958 | 71 |
| December | 13.1°C8 Dec 2023 | -31.4°C8 Dec 1956 | 26 mm12 Dec 1970 | 38 mm2004 · driest 0 mm in 2020 | 71 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 |
| February | 0 | 0 | 25 | <1 |
| March | 0 | 0 | 22 | <1 |
| April | 2 | 0 | 5 | 1 |
| May | 11 | 1 | 0 | 2 |
| June | 21 | 6 | 0 | 4 |
| July | 29 | 12 | 0 | 5 |
| August | 27 | 10 | 0 | 6 |
| September | 13 | <1 | 0 | 2 |
| October | <1 | 0 | 6 | 2 |
| November | 0 | 0 | 21 | 1 |
| December | 0 | 0 | 28 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 84); on 2011–2025 it is September (88). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 8% | <1% | 2% | -7.5–-1.9°C |
| February | 0% | 10% | <1% | 4% | -3.7–2.7°C |
| March | <1% | 12% | 1% | 5% | 3.8–9.7°C |
| April | 23% | 21% | 5% | 18% | 14.1–18.6°C |
| May | 62% | 26% | 8% | 24% | 21.3–24.9°C |
| June | 67% | 33% | 12% | 41% | 24.9–28.5°C |
| July | 61% | 39% | 19% | 55% | 27.4–30.7°C |
| August | 64% | 36% | 17% | 41% | 27.1–29.7°C |
| September | 66% | 24% | 9% | 19% | 22.2–25.2°C |
| October | 23% | 19% | 6% | 11% | 14.0–18.3°C |
| November | <1% | 17% | 3% | 10% | 3.4–8.8°C |
| December | 0% | 10% | <1% | 3% | -5.4–0.3°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page